diff --git a/setup.py b/setup.py
index de5a106..d2d8efd 100755
--- a/setup.py
+++ b/setup.py
@@ -50,7 +50,7 @@ if sys.version_info[:2] < (2, 7):
     install_requires.append('argparse>=1.2.1')
     install_requires.append('importlib>=1.0.2')
 if os.name == 'nt':
-    install_requires.append('pyreadline>=2.0')
+    install_requires.append('pyreadline>=2.1')
 
 setup(
     name=PKG,